520 operating control

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franpipeman
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Posts: 297
Joined: Fri. Jan. 11, 2008 4:27 pm
Stoker Coal Boiler: efm 520 stoker fitzgibbons pressure vessel
Hand Fed Coal Stove: harman, russo
Coal Size/Type: rice
Other Heating: alpine propane condensing boiler radiant floor
Location: Wernersville pa

Post By: franpipeman » Tue. Mar. 13, 2018 8:25 pm

Has the digital age created a replacement for the l8124a Honeywell Operating controller for a efm 520. Do folk use other controllers ?

nepacoal
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Posts: 320
Joined: Wed. Nov. 21, 2012 7:49 am
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly"
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck
Location: NEPA

Post By: nepacoal » Tue. Mar. 13, 2018 8:53 pm

My kaa-4 came from the factory with a Hydrolevel 3250 plus digital triple aquastat. Has worked perfectly since day one and is very easy to set and adjust. It can also act as a LWCO when using an electrowell

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Scottscoaled
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Posts: 2680
Joined: Tue. Jan. 08, 2008 9:51 pm
Stoker Coal Boiler: EFM 520, 700, Van Wert 800 GJ 61,53
Baseburners & Antiques: Magic Stewart 16, times 2!
Coal Size/Type: Lots of buck
Other Heating: Slant Fin electric boiler backup
Location: Malta N.Y.

Post By: Scottscoaled » Tue. Mar. 13, 2018 10:44 pm

I also use the Hydolevel 3250.

Visit Alternate Heating Sytems

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McGiever
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Posts: 7273
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hand Fed Coal Boiler: BUCKET A DAY water heater
Hand Fed Coal Stove: Warm Morning 414A
Coal Size/Type: RICE,PEA,NUT,STOVE /ANTHRACITE and EGG / BIT
Other Heating: Ground Source Heat Pump and some Solar
Location: Junction of PA-OH-WV

Post By: McGiever » Tue. Mar. 13, 2018 10:55 pm

And this is Honeywell's addition:

HONEYWELL L7224U 1002 AQUASTAT high low limit relay boiler control

Honeywell-L7224U1002-120-Vac-Oil-Electronic-Aquastat

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franpipeman
Member
Posts: 297
Joined: Fri. Jan. 11, 2008 4:27 pm
Stoker Coal Boiler: efm 520 stoker fitzgibbons pressure vessel
Hand Fed Coal Stove: harman, russo
Coal Size/Type: rice
Other Heating: alpine propane condensing boiler radiant floor
Location: Wernersville pa

Post By: franpipeman » Wed. Mar. 14, 2018 2:29 pm

thanks everyone Mine is like 50 years old and I have a freebee untested Sid Harvery rebuilt i thought i should get shopping

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